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BACKGROUND Rhododendron is a group of famous landscape plants with high medicinal value. However, there is no simple or universal manner to discriminate the various species of this group. Deoxyribonucleic acid (DNA) barcoding technique is a new biological tool that can accurately and objectively identify species by using short and standard DNA regions. (More)
Toxic Volatile Organic Compound (VOC) pollutants have seriously affected public health. FAIMS is a quick and high sensitive gas-phase ion detection technique. In this paper, a FAIMS system has been built and various VOCs detections are performed to evaluate the suitability of the system's separation effect. Finally, the relation between the waveform and the(More)
Benzene, toluene, p-xylene, m-xylene and o-xylene are harmful to human body seriously, moreover, p-xylene, m-xylene and o-xylene are isomers, which are difficult to distinguish by commonly used spectrum analysis techniques, such as mass spectrometry. In this article, they were detected by using high field asymmetric waveform ion mobility spectrometry(More)
Seed mass and morphology are plant life history traits that influence seed dispersal ability, seeding establishment success, and population distribution pattern. Southeastern Tibet is a diversity center for Rhododendron species, which are distributed from a few hundred meters to 5500 m above sea level. We examined intra- and interspecific variation in seed(More)
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